First Defense blends zinc gluconate with olive leaf, St. John's wort, larch arabinogalactan, and colloidal silver extracts in a glycerin-and-water base, sweetened with stevia. It's formulated without dairy, gluten, soy, or artificial additives.
ChildLife markets this as a daily immune-support formula for infants and children, with dosing guidance provided on the label by age.












